0.00
5.00
10.00
15.00
20.00
25.00
30.00
35.00
40.00
32
(0)
50
(10)
68
(20)
86
(30)
104
(40)
122
(50)
140
(60)
0.00
20.00
40.00
60.00
80.00
100.00
120.00
140.00
160.00
180.00
32
(0)
68
(20)
104
(40)
140
(60)
176
(80)
0.00
20.00
40.00
60.00
80.00
100.00
120.00
140.00
160.00
180.00
32
(0)
68
(20)
104
(40)
140
(60)
176
(80)
212
(100)
248
(120)
0.00
10.00
20.00
30.00
40.00
50.00
0.00
20.00
40.00
60.00
80.00
100.00
120.00
Thermistor resistance values
Characteristics of room temperature thermistor
Resistance (k )
Temperature °F(°C)
Characteristics of heat exchanger thermistor (Indoor)
Resistance (k )
Temperature °F(°C)
Characteristics of discharge thermistor
Resistance (k )
Temperature °F(°C)
Resistance (k )
Temperature °F(°C)
Characteristics of heat exchanger thermistor (Outdoor)
Resistance (k )
Temperature °F(°C)
Characteristics of outdoor temperature thermistor
08-06
Temp °F(°C) Voltage (V)
32.00
41.00
50.00
59.00
68.00
77.00
86.00
95.00
104.00
113.00
122.00
131.00
140.00
149.00
158.00
167.00
176.00
185.00
194.00
203.00
212.00
(0.00)
(5.00)
(10.00)
(15.00)
(20.00)
(25.00)
(30.00)
(35.00)
(40.00)
(45.00)
(50.00)
(55.00)
(60.00)
(65.00)
(70.00)
(75.00)
(80.00)
(85.00)
(90.00)
(95.00)
(100.00)
33.62
25.93
20.18
15.84
12.54
10.00
8.04
6.51
5.30
4.35
3.59
2.98
2.47
2.09
1.76
1.49
1.27
1.09
0.93
0.81
0.70
1.15
1.39
1.66
1.94
2.22
2.50
2.77
3.03
3.27
3.48
3.68
3.85
4.00
4.14
4.25
4.35
4.44
4.51
4.57
4.63
4.67
Room temperature thermistor
Resistance k
Temp °F(°C) Voltage (V)
32.00
41.00
50.00
59.00
68.00
77.00
86.00
95.00
104.00
113.00
122.00
131.00
140.00
149.00
158.00
167.00
176.00
185.00
194.00
203.00
212.00
(0.00)
(5.00)
(10.00)
(15.00)
(20.00)
(25.00)
(30.00)
(35.00)
(40.00)
(45.00)
(50.00)
(55.00)
(60.00)
(65.00)
(70.00)
(75.00)
(80.00)
(85.00)
(90.00)
(95.00)
(100.00)
0.18
0.24
0.30
0.31
0.38
0.47
0.70
0.84
0.99
1.16
1.34
1.54
1.74
1.95
2.16
2.36
2.57
2.76
2.95
3.13
3.30
Discharge thermistor
Resistance k
221.00 (105.00) 3.45
230.00 (110.00) 3.60
239.00 (115.00) 3.73
248.00 (120.00)
175.70
134.93
104.59
81.79
64.50
51.27
41.07
33.13
26.91
22.01
18.10
14.98
12.47
10.44
8.78
7.42
6.31
5.38
4.61
3.97
3.43
2.98
2.59
2.26
1.99 3.85
Temp °F(°C) Voltage (V)
32.00
41.00
50.00
59.00
68.00
77.00
86.00
95.00
104.00
113.00
122.00
131.00
140.00
149.00
158.00
167.00
176.00
185.00
194.00
203.00
212.00
(0.00)
(5.00)
(10.00)
(15.00)
(20.00)
(25.00)
(30.00)
(35.00)
(40.00)
(45.00)
(50.00)
(55.00)
(60.00)
(65.00)
(70.00)
(75.00)
(80.00)
(85.00)
(90.00)
(95.00)
(100.00)
176.03
134.23
103.34
80.28
62.91
49.70
39.57
31.74
25.64
20.85
17.06
14.10
11.64
9.69
8.12
6.83
5.78
4.91
4.19
3.59
3.09
1.10
1.36
1.63
1.92
2.21
2.51
2.79
3.06
3.30
3.53
3.73
3.90
4.55
4.19
4.30
4.40
4.48
4.55
4.61
4.66
4.71
Indoor heat exchanger thermistor
Resistance k
Temp °F(°C) Voltage (V)
49.20
36.58
27.51
20.91
16.05
12.44
9.73
7.67
6.10
4.89
3.95
3.21
2.62
2.16
1.79
1.49
1.25
1.05
0.89
0.76
0.65
2.66
3.02
3.35
3.64
3.89
4.09
4.26
4.40
4.51
4.60
4.67
4.73
4.78
4.81
4.85
4.87
4.89
4.91
4.92
4.93
4.94
Outdoor heat exchanger thermistor
Resistance k
0.56 4.95
0.48 4.96
0.41 4.96
32.00
41.00
50.00
59.00
68.00
77.00
86.00
95.00
104.00
113.00
122.00
131.00
140.00
149.00
158.00
167.00
176.00
185.00
194.00
203.00
212.00
(0.00)
(5.00)
(10.00)
(15.00)
(20.00)
(25.00)
(30.00)
(35.00)
(40.00)
(45.00)
(50.00)
(55.00)
(60.00)
(65.00)
(70.00)
(75.00)
(80.00)
(85.00)
(90.00)
(95.00)
(100.00)
-4.00 (-20.00)
5.00 (-15.00)
14.00 (-10.00)
23.00 (-5.00)
0.36 4.97
Temp °F(°C) Voltage (V)
1.25
1.56
1.90
2.26
2.61
2.94
3.25
3.52
3.76
3.97
4.14
4.28
4.41
4.51
4.59
4.65
4.71
4.76
4.79
4.83
4.85
Outdoor temperature thermistor
Resistance k
4.87
4.89
4.91
115.24
84.21
62.28
46.58
35.21
26.88
20.72
16.12
12.64
10.00
7.97
6.40
5.18
4.21
3.45
2.85
2.36
1.97
1.65
1.39
1.18
1.00
0.85
0.73
0.63 4.92
32.00
41.00
50.00
59.00
68.00
77.00
86.00
95.00
104.00
113.00
122.00
131.00
140.00
149.00
158.00
167.00
176.00
185.00
194.00
203.00
212.00
(0.00)
(5.00)
(10.00)
(15.00)
(20.00)
(25.00)
(30.00)
(35.00)
(40.00)
(45.00)
(50.00)
(55.00)
(60.00)
(65.00)
(70.00)
(75.00)
(80.00)
(85.00)
(90.00)
(95.00)
(100.00)
-4.00 (-20.00)
5.00 (-15.00)
14.00 (-10.00)
23.00 (-5.00)
32
(0)
68
(20)
104
(40)
140
(60)
176
(80)
-4
(-20)
32
(0)
68
(20)
104
(40)
140
(60)
-4
(-20)